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Finding the Fourth Proportional to 518,054.18, 714,934.58 and 300,269.97

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Solution

The fourth proportional to 518,054.18, 714,934.58 and 300,269.97 is: 414,384.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,054.18 : 714,934.58 = 300,269.97 : x
  2. Step 2: Convert to fraction form
    518,054.18/714,934.58 = 300,269.97/x
  3. Step 3: Cross multiply
    518,054.18x = 714,934.58 × 300,269.97
  4. Step 4: Simplify right side
    518,054.18x = 214,673,383,387.21
  5. Step 5: Solve for x
    x = 214,673,383,387.21/518,054.18
  6. Step 6: Final answer
    x = 414,384.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.